This master thesis illustrates the ways by which polyphonic narratives reveal some information about the employees’ experiences during a process of organizational change. In order to identify these multiple voices, we analyzed the employees’ and managers’ narratives. Through the employees’ narratives, we tried to empirically illustrate the way narratives are constitutive of organizational change. Furthermore, we sought to bring to light employees’ preoccupations that feed and are constitutive of the change process as well as the organizational entity. The employees’ stories were analyzed through a polyphonic perspective, that is, an approach that highlight the existence of multiple voices in tensions, voices that are part of the employees’ narratives. To help us investigate these stories, our theoretical framework was based on the ventriloquist approach, as proposed by Cooren (2012, 2013). These preoccupations were analyzed as several voices animating and authoring these narratives, hence creating a polyphonic narrative that we attempted to identify and categorize in our interviews. This polyphonic analysis, by the tracking of voices, figures and tensions allowed us to shed light on preoccupations that are constitutive of the change process. In this master thesis we identified and analyzed the voices, figures and tensions that illustrate the ways by which each employee experienced the process of organizational change. Consequently, we were able to contribute to the literature on polyphonic narratives and organizational change. As we show, this literature does not allow us to understand the way by which employees voice their concerns emerging from the change process and how these preoccupations interact with one another and integrate into organizational change narratives. Our findings suggest that all the employees’ preoccupations and concerns provide a global picture of their experiences during the process of organizational change and a better understanding of the tensions that are also part of the change process.